gallium: Reorg winsys directories

Attached output from commit.
 delete mode 100644 src/gallium/winsys/drm/SConscript
 delete mode 100644 src/gallium/winsys/drm/i965/SConscript
 delete mode 100644 src/gallium/winsys/drm/intel/Makefile
 delete mode 100644 src/gallium/winsys/drm/intel/SConscript
 delete mode 100644 src/gallium/winsys/drm/nouveau/Makefile
 delete mode 100644 src/gallium/winsys/drm/radeon/Makefile
 delete mode 100644 src/gallium/winsys/drm/radeon/SConscript
 delete mode 100644 src/gallium/winsys/drm/vmware/Makefile
 delete mode 100644 src/gallium/winsys/drm/vmware/SConscript
 rename src/gallium/winsys/{drm/intel/gem => i915/drm}/Makefile (82%)
 rename src/gallium/winsys/{drm/intel/gem => i915/drm}/SConscript (100%)
 rename src/gallium/winsys/{drm/intel/gem => i915/drm}/intel_drm_api.c (100%)
 rename src/gallium/winsys/{drm/intel/gem => i915/drm}/intel_drm_batchbuffer.c (100%)
 rename src/gallium/winsys/{drm/intel/gem => i915/drm}/intel_drm_buffer.c (100%)
 rename src/gallium/winsys/{drm/intel/gem => i915/drm}/intel_drm_fence.c (100%)
 rename src/gallium/winsys/{drm/intel/gem => i915/drm}/intel_drm_winsys.h (100%)
 rename src/gallium/winsys/{drm/i965/gem => i965/drm}/Makefile (78%)
 rename src/gallium/winsys/{drm/i965/gem => i965/drm}/SConscript (100%)
 rename src/gallium/winsys/{drm/i965/gem => i965/drm}/i965_drm_api.c (98%)
 rename src/gallium/winsys/{drm/i965/gem => i965/drm}/i965_drm_buffer.c (100%)
 rename src/gallium/winsys/{drm/i965/gem => i965/drm}/i965_drm_winsys.h (100%)
 rename src/gallium/winsys/{drm => }/i965/xlib/Makefile (97%)
 rename src/gallium/winsys/{drm => }/i965/xlib/xlib_i965.c (100%)
 rename src/gallium/winsys/{drm => }/nouveau/drm/Makefile (79%)
 rename src/gallium/winsys/{drm => }/nouveau/drm/nouveau_dri.h (100%)
 rename src/gallium/winsys/{drm => }/nouveau/drm/nouveau_drm_api.c (100%)
 rename src/gallium/winsys/{drm => }/nouveau/drm/nouveau_drm_api.h (100%)
 rename src/gallium/winsys/{drm/radeon/core => radeon/drm}/Makefile (79%)
 rename src/gallium/winsys/{drm/radeon/core => radeon/drm}/SConscript (100%)
 rename src/gallium/winsys/{drm/radeon/core => radeon/drm}/radeon_buffer.h (100%)
 rename src/gallium/winsys/{drm/radeon/core => radeon/drm}/radeon_drm.c (100%)
 rename src/gallium/winsys/{drm/radeon/core => radeon/drm}/radeon_drm.h (100%)
 rename src/gallium/winsys/{drm/radeon/core => radeon/drm}/radeon_drm_buffer.c (100%)
 rename src/gallium/winsys/{drm/radeon/core => radeon/drm}/radeon_r300.c (100%)
 rename src/gallium/winsys/{drm/radeon/core => radeon/drm}/radeon_r300.h (100%)
 rename src/gallium/winsys/{drm/radeon/core => radeon/drm}/radeon_winsys.h (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/Makefile (63%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/SConscript (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_buffer.c (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_buffer.h (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_context.c (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_context.h (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_fence.c (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_fence.h (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_screen.c (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_screen.h (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_screen_dri.c (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_screen_ioctl.c (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_screen_pools.c (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_screen_svga.c (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_surface.c (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmw_surface.h (100%)
 rename src/gallium/winsys/{drm/vmware/core => svga/drm}/vmwgfx_drm.h (100%)
 rename src/gallium/winsys/{drm/i965 => sw}/Makefile (61%)
 copy src/gallium/winsys/{drm/sw => sw/drm}/Makefile (73%)
 rename src/gallium/winsys/{drm/sw => sw/drm}/sw_drm_api.c (98%)
 rename src/gallium/winsys/{drm/sw => sw/drm}/sw_drm_api.h (100%)
 rename src/gallium/winsys/{ => sw}/gdi/SConscript (100%)
 rename src/gallium/winsys/{ => sw}/gdi/gdi_sw_winsys.c (100%)
 rename src/gallium/winsys/{ => sw}/gdi/gdi_sw_winsys.h (100%)
 rename src/gallium/winsys/{ => sw}/null/Makefile (78%)
 rename src/gallium/winsys/{ => sw}/null/SConscript (100%)
 rename src/gallium/winsys/{ => sw}/null/null_sw_winsys.c (100%)
 rename src/gallium/winsys/{ => sw}/null/null_sw_winsys.h (100%)
 rename src/gallium/winsys/{drm/sw => sw/wrapper}/Makefile (65%)
 rename src/gallium/winsys/{drm/sw => sw/wrapper}/wrapper_sw_winsys.c (100%)
 rename src/gallium/winsys/{drm/sw => sw/wrapper}/wrapper_sw_winsys.h (100%)
 rename src/gallium/winsys/{ => sw}/xlib/Makefile (79%)
 rename src/gallium/winsys/{ => sw}/xlib/SConscript (100%)
 rename src/gallium/winsys/{ => sw}/xlib/xlib_sw_winsys.c (100%)

17 files changed, 3206 insertions, 0 deletions

diff --git a/src/gallium/winsys/svga/drm/Makefile b/src/gallium/winsys/svga/drm/Makefile
new file mode 100644
index 00000000000..c2f59e01b0d
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/Makefile
@@ -0,0 +1,27 @@
+TOP = ../../../../..
+include $(TOP)/configs/current
+
+LIBNAME = svgadrm
+
+C_SOURCES = \
+        vmw_buffer.c \
+        vmw_context.c  \
+        vmw_fence.c  \
+        vmw_screen.c  \
+        vmw_screen_dri.c  \
+        vmw_screen_ioctl.c  \
+        vmw_screen_pools.c  \
+        vmw_screen_svga.c  \
+        vmw_surface.c
+
+LIBRARY_INCLUDES = \
+       -I$(TOP)/src/gallium/drivers/svga \
+       -I$(TOP)/src/gallium/drivers/svga/include \
+       $(shell pkg-config libdrm --cflags-only-I)
+
+LIBRARY_DEFINES = \
+       -std=gnu99 -fvisibility=hidden \
+       -DHAVE_STDINT_H -D_FILE_OFFSET_BITS=64 \
+       $(shell pkg-config libdrm --cflags-only-other)
+
+include ../../../Makefile.template
diff --git a/src/gallium/winsys/svga/drm/SConscript b/src/gallium/winsys/svga/drm/SConscript
new file mode 100644
index 00000000000..edaf9458bee
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/SConscript
@@ -0,0 +1,39 @@
+Import('*')
+
+env = env.Clone()
+
+if env['gcc']:
+	env.Append(CCFLAGS = ['-fvisibility=hidden'])
+	env.Append(CPPDEFINES = [
+		'HAVE_STDINT_H', 
+		'HAVE_SYS_TYPES_H',
+                '-D_FILE_OFFSET_BITS=64',
+	])
+	
+env.Prepend(CPPPATH = [
+	'include',
+        '#/src/gallium/drivers/svga',
+        '#/src/gallium/drivers/svga/include',
+])
+
+env.Append(CPPDEFINES = [
+])
+
+sources = [
+        'vmw_buffer.c',
+        'vmw_context.c',
+        'vmw_fence.c',
+        'vmw_screen.c',
+        'vmw_screen_dri.c',
+        'vmw_screen_ioctl.c',
+        'vmw_screen_pools.c',
+        'vmw_screen_svga.c',
+        'vmw_surface.c',
+]
+
+svgadrm = env.ConvenienceLibrary(
+	target = 'svgadrm',
+	source = sources,
+)
+
+Export('svgadrm')
diff --git a/src/gallium/winsys/svga/drm/vmw_buffer.c b/src/gallium/winsys/svga/drm/vmw_buffer.c
new file mode 100644
index 00000000000..eca174a6c56
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_buffer.c
@@ -0,0 +1,274 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+/**
+ * @file
+ * SVGA buffer manager for Guest Memory Regions (GMRs).
+ * 
+ * GMRs are used for pixel and vertex data upload/download to/from the virtual
+ * SVGA hardware. There is a limited number of GMRs available, and 
+ * creating/destroying them is also a slow operation so we must suballocate 
+ * them.
+ * 
+ * This file implements a pipebuffer library's buffer manager, so that we can
+ * use pipepbuffer's suballocation, fencing, and debugging facilities with GMRs. 
+ * 
+ * @author Jose Fonseca <[email protected]>
+ */
+
+
+#include "svga_cmd.h"
+
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "pipebuffer/pb_buffer.h"
+#include "pipebuffer/pb_bufmgr.h"
+
+#include "svga_winsys.h"
+
+#include "vmw_screen.h"
+#include "vmw_buffer.h"
+
+
+struct vmw_gmr_bufmgr;
+
+
+struct vmw_gmr_buffer
+{
+   struct pb_buffer base;
+   
+   struct vmw_gmr_bufmgr *mgr;
+   
+   struct vmw_region *region;
+   void *map;
+   
+#ifdef DEBUG
+   struct pipe_fence_handle *last_fence;
+#endif
+};
+
+
+extern const struct pb_vtbl vmw_gmr_buffer_vtbl;
+
+
+static INLINE struct vmw_gmr_buffer *
+vmw_gmr_buffer(struct pb_buffer *buf)
+{
+   assert(buf);
+   assert(buf->vtbl == &vmw_gmr_buffer_vtbl);
+   return (struct vmw_gmr_buffer *)buf;
+}
+
+
+struct vmw_gmr_bufmgr
+{
+   struct pb_manager base;
+   
+   struct vmw_winsys_screen *vws;
+};
+
+
+static INLINE struct vmw_gmr_bufmgr *
+vmw_gmr_bufmgr(struct pb_manager *mgr)
+{
+   assert(mgr);
+   return (struct vmw_gmr_bufmgr *)mgr;
+}
+
+
+static void
+vmw_gmr_buffer_destroy(struct pb_buffer *_buf)
+{
+   struct vmw_gmr_buffer *buf = vmw_gmr_buffer(_buf);
+
+#ifdef DEBUG
+   if(buf->last_fence) {
+      struct svga_winsys_screen *sws = &buf->mgr->vws->base;
+      assert(sws->fence_signalled(sws, buf->last_fence, 0) == 0);
+   }
+#endif
+
+   vmw_ioctl_region_unmap(buf->region);
+   
+   vmw_ioctl_region_destroy(buf->region);
+
+   FREE(buf);
+}
+
+
+static void *
+vmw_gmr_buffer_map(struct pb_buffer *_buf,
+               unsigned flags)
+{
+   struct vmw_gmr_buffer *buf = vmw_gmr_buffer(_buf);
+   return buf->map;
+}
+
+
+static void
+vmw_gmr_buffer_unmap(struct pb_buffer *_buf)
+{
+   /* Do nothing */
+   (void)_buf;
+}
+
+
+static void
+vmw_gmr_buffer_get_base_buffer(struct pb_buffer *buf,
+                           struct pb_buffer **base_buf,
+                           unsigned *offset)
+{
+   *base_buf = buf;
+   *offset = 0;
+}
+
+
+static enum pipe_error
+vmw_gmr_buffer_validate( struct pb_buffer *_buf, 
+                         struct pb_validate *vl,
+                         unsigned flags )
+{
+   /* Always pinned */
+   return PIPE_OK;
+}
+
+
+static void
+vmw_gmr_buffer_fence( struct pb_buffer *_buf, 
+                      struct pipe_fence_handle *fence )
+{
+   /* We don't need to do anything, as the pipebuffer library
+    * will take care of delaying the destruction of fenced buffers */  
+#ifdef DEBUG
+   struct vmw_gmr_buffer *buf = vmw_gmr_buffer(_buf);
+   if(fence)
+      buf->last_fence = fence;
+#endif
+}
+
+
+const struct pb_vtbl vmw_gmr_buffer_vtbl = {
+   vmw_gmr_buffer_destroy,
+   vmw_gmr_buffer_map,
+   vmw_gmr_buffer_unmap,
+   vmw_gmr_buffer_validate,
+   vmw_gmr_buffer_fence,
+   vmw_gmr_buffer_get_base_buffer
+};
+
+
+static struct pb_buffer *
+vmw_gmr_bufmgr_create_buffer(struct pb_manager *_mgr,
+                         pb_size size,
+                         const struct pb_desc *desc) 
+{
+   struct vmw_gmr_bufmgr *mgr = vmw_gmr_bufmgr(_mgr);
+   struct vmw_winsys_screen *vws = mgr->vws;
+   struct vmw_gmr_buffer *buf;
+   
+   buf = CALLOC_STRUCT(vmw_gmr_buffer);
+   if(!buf)
+      goto error1;
+
+   pipe_reference_init(&buf->base.base.reference, 1);
+   buf->base.base.alignment = desc->alignment;
+   buf->base.base.usage = desc->usage;
+   buf->base.base.size = size;
+   buf->base.vtbl = &vmw_gmr_buffer_vtbl;
+   buf->mgr = mgr;
+
+   buf->region = vmw_ioctl_region_create(vws, size);
+   if(!buf->region)
+      goto error2;
+	 
+   buf->map = vmw_ioctl_region_map(buf->region);
+   if(!buf->map)
+      goto error3;
+
+   return &buf->base;
+
+error3:
+   vmw_ioctl_region_destroy(buf->region);
+error2:
+   FREE(buf);
+error1:
+   return NULL;
+}
+
+
+static void
+vmw_gmr_bufmgr_flush(struct pb_manager *mgr) 
+{
+   /* No-op */
+}
+
+
+static void
+vmw_gmr_bufmgr_destroy(struct pb_manager *_mgr) 
+{
+   struct vmw_gmr_bufmgr *mgr = vmw_gmr_bufmgr(_mgr);
+   FREE(mgr);
+}
+
+
+struct pb_manager *
+vmw_gmr_bufmgr_create(struct vmw_winsys_screen *vws) 
+{
+   struct vmw_gmr_bufmgr *mgr;
+   
+   mgr = CALLOC_STRUCT(vmw_gmr_bufmgr);
+   if(!mgr)
+      return NULL;
+
+   mgr->base.destroy = vmw_gmr_bufmgr_destroy;
+   mgr->base.create_buffer = vmw_gmr_bufmgr_create_buffer;
+   mgr->base.flush = vmw_gmr_bufmgr_flush;
+   
+   mgr->vws = vws;
+   
+   return &mgr->base;
+}
+
+
+boolean
+vmw_gmr_bufmgr_region_ptr(struct pb_buffer *buf, 
+                          struct SVGAGuestPtr *ptr)
+{
+   struct pb_buffer *base_buf;
+   unsigned offset = 0;
+   struct vmw_gmr_buffer *gmr_buf;
+   
+   pb_get_base_buffer( buf, &base_buf, &offset );
+   
+   gmr_buf = vmw_gmr_buffer(base_buf);
+   if(!gmr_buf)
+      return FALSE;
+   
+   *ptr = vmw_ioctl_region_ptr(gmr_buf->region);
+   
+   ptr->offset += offset;
+   
+   return TRUE;
+}
diff --git a/src/gallium/winsys/svga/drm/vmw_buffer.h b/src/gallium/winsys/svga/drm/vmw_buffer.h
new file mode 100644
index 00000000000..41fb4476da5
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_buffer.h
@@ -0,0 +1,65 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+
+#ifndef VMW_BUFFER_H_
+#define VMW_BUFFER_H_
+
+#include <assert.h>
+#include "pipe/p_compiler.h"
+
+struct SVGAGuestPtr;
+struct pb_buffer;
+struct pb_manager;
+struct svga_winsys_buffer;
+struct svga_winsys_surface;
+struct vmw_winsys_screen;
+
+
+static INLINE struct pb_buffer *
+vmw_pb_buffer(struct svga_winsys_buffer *buffer)
+{
+   assert(buffer);
+   return (struct pb_buffer *)buffer;
+}
+
+
+static INLINE struct svga_winsys_buffer *
+vmw_svga_winsys_buffer(struct pb_buffer *buffer)
+{
+   assert(buffer);
+   return (struct svga_winsys_buffer *)buffer;
+}
+
+
+struct pb_manager *
+vmw_gmr_bufmgr_create(struct vmw_winsys_screen *vws);
+
+boolean
+vmw_gmr_bufmgr_region_ptr(struct pb_buffer *buf, 
+                          struct SVGAGuestPtr *ptr);
+
+
+#endif /* VMW_BUFFER_H_ */
diff --git a/src/gallium/winsys/svga/drm/vmw_context.c b/src/gallium/winsys/svga/drm/vmw_context.c
new file mode 100644
index 00000000000..90ffc4868f7
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_context.c
@@ -0,0 +1,382 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+
+#include "svga_cmd.h"
+
+#include "util/u_debug.h"
+#include "util/u_memory.h"
+#include "util/u_debug_stack.h"
+#include "pipebuffer/pb_buffer.h"
+#include "pipebuffer/pb_validate.h"
+
+#include "svga_winsys.h"
+#include "vmw_context.h"
+#include "vmw_screen.h"
+#include "vmw_buffer.h"
+#include "vmw_surface.h"
+#include "vmw_fence.h"
+
+#define VMW_COMMAND_SIZE (64*1024)
+#define VMW_SURFACE_RELOCS (1024)
+#define VMW_REGION_RELOCS (512)
+
+#define VMW_MUST_FLUSH_STACK 8
+
+struct vmw_region_relocation
+{
+   struct SVGAGuestPtr *where;
+   struct pb_buffer *buffer;
+   /* TODO: put offset info inside where */
+   uint32 offset;
+};
+
+struct vmw_svga_winsys_context
+{
+   struct svga_winsys_context base;
+
+   struct vmw_winsys_screen *vws;
+
+#ifdef DEBUG
+   boolean must_flush;
+   struct debug_stack_frame must_flush_stack[VMW_MUST_FLUSH_STACK];
+#endif
+
+   struct {
+      uint8_t buffer[VMW_COMMAND_SIZE];
+      uint32_t size;
+      uint32_t used;
+      uint32_t reserved;
+   } command;
+
+   struct {
+      struct vmw_svga_winsys_surface *handles[VMW_SURFACE_RELOCS];
+      uint32_t size;
+      uint32_t used;
+      uint32_t staged;
+      uint32_t reserved;
+   } surface;
+   
+   struct {
+      struct vmw_region_relocation relocs[VMW_REGION_RELOCS];
+      uint32_t size;
+      uint32_t used;
+      uint32_t staged;
+      uint32_t reserved;
+   } region;
+
+   struct pb_validate *validate;
+
+   uint32_t last_fence;
+
+   /**
+    * The amount of GMR that is referred by the commands currently batched
+    * in the context.
+    */
+   uint32_t seen_regions;
+
+   /**
+    * Whether this context should fail to reserve more commands, not because it
+    * ran out of command space, but because a substantial ammount of GMR was
+    * referred.
+    */
+   boolean preemptive_flush;
+};
+
+
+static INLINE struct vmw_svga_winsys_context *
+vmw_svga_winsys_context(struct svga_winsys_context *swc)
+{
+   assert(swc);
+   return (struct vmw_svga_winsys_context *)swc;
+}
+
+
+static enum pipe_error
+vmw_swc_flush(struct svga_winsys_context *swc,
+              struct pipe_fence_handle **pfence)
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+   struct pipe_fence_handle *fence = NULL;
+   unsigned i;
+   enum pipe_error ret;
+
+   ret = pb_validate_validate(vswc->validate);
+   assert(ret == PIPE_OK);
+   if(ret == PIPE_OK) {
+   
+      /* Apply relocations */
+      for(i = 0; i < vswc->region.used; ++i) {
+         struct vmw_region_relocation *reloc = &vswc->region.relocs[i];
+         struct SVGAGuestPtr ptr;
+
+         if(!vmw_gmr_bufmgr_region_ptr(reloc->buffer, &ptr))
+            assert(0);
+
+         ptr.offset += reloc->offset;
+
+         *reloc->where = ptr;
+      }
+
+      if (vswc->command.used)
+         vmw_ioctl_command(vswc->vws,
+                           vswc->command.buffer,
+                           vswc->command.used,
+                           &vswc->last_fence);
+
+      fence = vmw_pipe_fence(vswc->last_fence);
+
+      pb_validate_fence(vswc->validate, fence);
+   }
+
+   vswc->command.used = 0;
+   vswc->command.reserved = 0;
+
+   for(i = 0; i < vswc->surface.used + vswc->surface.staged; ++i) {
+      struct vmw_svga_winsys_surface *vsurf =
+	 vswc->surface.handles[i];
+      p_atomic_dec(&vsurf->validated);
+      vmw_svga_winsys_surface_reference(&vswc->surface.handles[i], NULL);
+   }
+
+   vswc->surface.used = 0;
+   vswc->surface.reserved = 0;
+
+   for(i = 0; i < vswc->region.used + vswc->region.staged; ++i) {
+      pb_reference(&vswc->region.relocs[i].buffer, NULL);
+   }
+
+   vswc->region.used = 0;
+   vswc->region.reserved = 0;
+
+#ifdef DEBUG
+   vswc->must_flush = FALSE;
+#endif
+   vswc->preemptive_flush = FALSE;
+   vswc->seen_regions = 0;
+
+   if(pfence)
+      *pfence = fence;
+
+   return ret;
+}
+
+
+static void *
+vmw_swc_reserve(struct svga_winsys_context *swc,
+                uint32_t nr_bytes, uint32_t nr_relocs )
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+
+#ifdef DEBUG
+   /* Check if somebody forgot to check the previous failure */
+   if(vswc->must_flush) {
+      debug_printf("Forgot to flush:\n");
+      debug_backtrace_dump(vswc->must_flush_stack, VMW_MUST_FLUSH_STACK);
+      assert(!vswc->must_flush);
+   }
+#endif
+
+   assert(nr_bytes <= vswc->command.size);
+   if(nr_bytes > vswc->command.size)
+      return NULL;
+
+   if(vswc->preemptive_flush ||
+      vswc->command.used + nr_bytes > vswc->command.size ||
+      vswc->surface.used + nr_relocs > vswc->surface.size ||
+      vswc->region.used + nr_relocs > vswc->region.size) {
+#ifdef DEBUG
+      vswc->must_flush = TRUE;
+      debug_backtrace_capture(vswc->must_flush_stack, 1,
+                              VMW_MUST_FLUSH_STACK);
+#endif
+      return NULL;
+   }
+
+   assert(vswc->command.used + nr_bytes <= vswc->command.size);
+   assert(vswc->surface.used + nr_relocs <= vswc->surface.size);
+   assert(vswc->region.used + nr_relocs <= vswc->region.size);
+   
+   vswc->command.reserved = nr_bytes;
+   vswc->surface.reserved = nr_relocs;
+   vswc->surface.staged = 0;
+   vswc->region.reserved = nr_relocs;
+   vswc->region.staged = 0;
+   
+   return vswc->command.buffer + vswc->command.used;
+}
+
+
+static void
+vmw_swc_surface_relocation(struct svga_winsys_context *swc,
+                           uint32 *where,
+                           struct svga_winsys_surface *surface,
+                           unsigned flags)
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+   struct vmw_svga_winsys_surface *vsurf;
+
+   if(!surface) {
+      *where = SVGA3D_INVALID_ID;
+      return;
+   }
+
+   assert(vswc->surface.staged < vswc->surface.reserved);
+
+   vsurf = vmw_svga_winsys_surface(surface);
+
+   *where = vsurf->sid;
+
+   vmw_svga_winsys_surface_reference(&vswc->surface.handles[vswc->surface.used + vswc->surface.staged], vsurf);
+   p_atomic_inc(&vsurf->validated);
+   ++vswc->surface.staged;
+}
+
+
+static void
+vmw_swc_region_relocation(struct svga_winsys_context *swc,
+                          struct SVGAGuestPtr *where,
+                          struct svga_winsys_buffer *buffer,
+                          uint32 offset,
+                          unsigned flags)
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+   struct vmw_region_relocation *reloc;
+   enum pipe_error ret;
+   
+   assert(vswc->region.staged < vswc->region.reserved);
+
+   reloc = &vswc->region.relocs[vswc->region.used + vswc->region.staged];
+   reloc->where = where;
+   pb_reference(&reloc->buffer, vmw_pb_buffer(buffer));
+   reloc->offset = offset;
+
+   ++vswc->region.staged;
+
+   ret = pb_validate_add_buffer(vswc->validate, reloc->buffer, flags);
+   /* TODO: Update pipebuffer to reserve buffers and not fail here */
+   assert(ret == PIPE_OK);
+
+   /*
+    * Flush preemptively the FIFO commands to keep the GMR working set within
+    * the GMR pool size.
+    *
+    * This is necessary for applications like SPECviewperf that generate huge
+    * amounts of immediate vertex data, so that we don't pile up too much of
+    * that vertex data neither in the guest nor in the host.
+    *
+    * Note that in the current implementation if a region is referred twice in
+    * a command stream, it will be accounted twice. We could detect repeated
+    * regions and count only once, but there is no incentive to do that, since
+    * regions are typically short-lived; always referred in a single command;
+    * and at the worst we just flush the commands a bit sooner, which for the
+    * SVGA virtual device it's not a performance issue since flushing commands
+    * to the FIFO won't cause flushing in the host.
+    */
+   vswc->seen_regions += reloc->buffer->base.size;
+   if(vswc->seen_regions >= VMW_GMR_POOL_SIZE/2)
+      vswc->preemptive_flush = TRUE;
+}
+
+
+static void
+vmw_swc_commit(struct svga_winsys_context *swc)
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+
+   assert(vswc->command.reserved);
+   assert(vswc->command.used + vswc->command.reserved <= vswc->command.size);
+   vswc->command.used += vswc->command.reserved;
+   vswc->command.reserved = 0;
+
+   assert(vswc->surface.staged <= vswc->surface.reserved);
+   assert(vswc->surface.used + vswc->surface.staged <= vswc->surface.size);
+   vswc->surface.used += vswc->surface.staged;
+   vswc->surface.staged = 0;
+   vswc->surface.reserved = 0;
+
+   assert(vswc->region.staged <= vswc->region.reserved);
+   assert(vswc->region.used + vswc->region.staged <= vswc->region.size);
+   vswc->region.used += vswc->region.staged;
+   vswc->region.staged = 0;
+   vswc->region.reserved = 0;
+}
+
+
+static void
+vmw_swc_destroy(struct svga_winsys_context *swc)
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+   unsigned i;
+
+   for(i = 0; i < vswc->region.used; ++i) {
+      pb_reference(&vswc->region.relocs[i].buffer, NULL);
+   }
+
+   for(i = 0; i < vswc->surface.used; ++i) {
+      p_atomic_dec(&vswc->surface.handles[i]->validated);
+      vmw_svga_winsys_surface_reference(&vswc->surface.handles[i], NULL);
+   }
+   pb_validate_destroy(vswc->validate);
+   vmw_ioctl_context_destroy(vswc->vws, swc->cid);
+   FREE(vswc);
+}
+
+
+struct svga_winsys_context *
+vmw_svga_winsys_context_create(struct svga_winsys_screen *sws)
+{
+   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
+   struct vmw_svga_winsys_context *vswc;
+
+   vswc = CALLOC_STRUCT(vmw_svga_winsys_context);
+   if(!vswc)
+      return NULL;
+
+   vswc->base.destroy = vmw_swc_destroy;
+   vswc->base.reserve = vmw_swc_reserve;
+   vswc->base.surface_relocation = vmw_swc_surface_relocation;
+   vswc->base.region_relocation = vmw_swc_region_relocation;
+   vswc->base.commit = vmw_swc_commit;
+   vswc->base.flush = vmw_swc_flush;
+
+   vswc->base.cid = vmw_ioctl_context_create(vws);
+
+   vswc->vws = vws;
+
+   vswc->command.size = VMW_COMMAND_SIZE;
+   vswc->surface.size = VMW_SURFACE_RELOCS;
+   vswc->region.size = VMW_REGION_RELOCS;
+
+   vswc->validate = pb_validate_create();
+   if(!vswc->validate) {
+      FREE(vswc);
+      return NULL;
+   }
+
+   return &vswc->base;
+}
+
+
diff --git a/src/gallium/winsys/svga/drm/vmw_context.h b/src/gallium/winsys/svga/drm/vmw_context.h
new file mode 100644
index 00000000000..d4884d24e99
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_context.h
@@ -0,0 +1,56 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+/**
+ * @author Jose Fonseca <[email protected]>
+ */
+
+
+#ifndef VMW_CONTEXT_H_
+#define VMW_CONTEXT_H_
+
+#include "pipe/p_compiler.h"
+
+struct svga_winsys_screen;
+struct svga_winsys_context;
+struct pipe_context;
+struct pipe_screen;
+
+#define VMW_DEBUG 0
+
+#if VMW_DEBUG
+#define vmw_printf debug_printf
+#define VMW_FUNC  debug_printf("%s\n", __FUNCTION__)
+#else
+#define VMW_FUNC
+#define vmw_printf(...)
+#endif
+
+
+struct svga_winsys_context *
+vmw_svga_winsys_context_create(struct svga_winsys_screen *sws);
+
+
+#endif /* VMW_CONTEXT_H_ */
diff --git a/src/gallium/winsys/svga/drm/vmw_fence.c b/src/gallium/winsys/svga/drm/vmw_fence.c
new file mode 100644
index 00000000000..873dd51166c
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_fence.c
@@ -0,0 +1,108 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+
+#include "util/u_memory.h"
+#include "pipebuffer/pb_buffer_fenced.h"
+
+#include "vmw_screen.h"
+#include "vmw_fence.h"
+
+
+
+struct vmw_fence_ops 
+{
+   struct pb_fence_ops base;
+
+   struct vmw_winsys_screen *vws;
+};
+
+
+static INLINE struct vmw_fence_ops *
+vmw_fence_ops(struct pb_fence_ops *ops)
+{
+   assert(ops);
+   return (struct vmw_fence_ops *)ops;
+}
+
+
+static void
+vmw_fence_ops_fence_reference(struct pb_fence_ops *ops,
+                              struct pipe_fence_handle **ptr,
+                              struct pipe_fence_handle *fence)
+{
+   *ptr = fence;
+}
+
+
+static int
+vmw_fence_ops_fence_signalled(struct pb_fence_ops *ops,
+                              struct pipe_fence_handle *fence,
+                              unsigned flag)
+{
+   struct vmw_winsys_screen *vws = vmw_fence_ops(ops)->vws;
+   (void)flag;
+   return vmw_ioctl_fence_signalled(vws, vmw_fence(fence));
+}
+
+
+static int
+vmw_fence_ops_fence_finish(struct pb_fence_ops *ops,
+                           struct pipe_fence_handle *fence,
+                           unsigned flag)
+{
+   struct vmw_winsys_screen *vws = vmw_fence_ops(ops)->vws;
+   (void)flag;
+   return vmw_ioctl_fence_finish(vws, vmw_fence(fence));
+}
+
+
+static void
+vmw_fence_ops_destroy(struct pb_fence_ops *ops)
+{
+   FREE(ops);
+}
+
+
+struct pb_fence_ops *
+vmw_fence_ops_create(struct vmw_winsys_screen *vws) 
+{
+   struct vmw_fence_ops *ops;
+
+   ops = CALLOC_STRUCT(vmw_fence_ops);
+   if(!ops)
+      return NULL;
+
+   ops->base.destroy = &vmw_fence_ops_destroy;
+   ops->base.fence_reference = &vmw_fence_ops_fence_reference;
+   ops->base.fence_signalled = &vmw_fence_ops_fence_signalled;
+   ops->base.fence_finish = &vmw_fence_ops_fence_finish;
+
+   ops->vws = vws;
+
+   return &ops->base;
+}
+
+
diff --git a/src/gallium/winsys/svga/drm/vmw_fence.h b/src/gallium/winsys/svga/drm/vmw_fence.h
new file mode 100644
index 00000000000..5357b4f61de
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_fence.h
@@ -0,0 +1,59 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+
+#ifndef VMW_FENCE_H_
+#define VMW_FENCE_H_
+
+
+#include "pipe/p_compiler.h"
+
+
+struct pipe_fence_handle;
+struct pb_fence_ops;
+struct vmw_winsys_screen;
+
+
+/** Cast from a pipe_fence_handle pointer into a SVGA fence */
+static INLINE uint32_t
+vmw_fence( struct pipe_fence_handle *fence )
+{
+   return (uint32_t)(uintptr_t)fence;
+}
+
+
+/** Cast from a SVGA fence number to pipe_fence_handle pointer */
+static INLINE struct pipe_fence_handle *
+vmw_pipe_fence( uint32_t fence )
+{
+   return (struct pipe_fence_handle *)(uintptr_t)fence;
+}
+
+
+struct pb_fence_ops *
+vmw_fence_ops_create(struct vmw_winsys_screen *vws); 
+
+
+#endif /* VMW_FENCE_H_ */
diff --git a/src/gallium/winsys/svga/drm/vmw_screen.c b/src/gallium/winsys/svga/drm/vmw_screen.c
new file mode 100644
index 00000000000..6cc9b382932
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_screen.c
@@ -0,0 +1,77 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+
+#include "vmw_screen.h"
+
+#include "vmw_context.h"
+
+#include "util/u_memory.h"
+#include "pipe/p_compiler.h"
+
+
+/* Called from vmw_drm_create_screen(), creates and initializes the
+ * vmw_winsys_screen structure, which is the main entity in this
+ * module.
+ */
+struct vmw_winsys_screen *
+vmw_winsys_create( int fd, boolean use_old_scanout_flag )
+{
+   struct vmw_winsys_screen *vws = CALLOC_STRUCT(vmw_winsys_screen);
+   if (!vws)
+      goto out_no_vws;
+
+   vws->ioctl.drm_fd = fd;
+   vws->use_old_scanout_flag = use_old_scanout_flag;
+   debug_printf("%s: use_old_scanout_flag == %s\n", __FUNCTION__,
+		use_old_scanout_flag ? "true" : "false");
+
+   if (!vmw_ioctl_init(vws))
+      goto out_no_ioctl;
+
+   if(!vmw_pools_init(vws))
+      goto out_no_pools;
+
+   if (!vmw_winsys_screen_init_svga(vws))
+      goto out_no_svga;
+
+   return vws;
+out_no_svga:
+   vmw_pools_cleanup(vws);
+out_no_pools:
+   vmw_ioctl_cleanup(vws);
+out_no_ioctl:
+   FREE(vws);
+out_no_vws:
+   return NULL;
+}
+
+void
+vmw_winsys_destroy(struct vmw_winsys_screen *vws)
+{
+   vmw_pools_cleanup(vws);
+   vmw_ioctl_cleanup(vws);
+   FREE(vws);
+}
diff --git a/src/gallium/winsys/svga/drm/vmw_screen.h b/src/gallium/winsys/svga/drm/vmw_screen.h
new file mode 100644
index 00000000000..d3f2c2c7f56
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_screen.h
@@ -0,0 +1,140 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+/**
+ * @file
+ * Common definitions for the VMware SVGA winsys.
+ *
+ * @author Jose Fonseca <[email protected]>
+ */
+
+
+#ifndef VMW_SCREEN_H_
+#define VMW_SCREEN_H_
+
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_state.h"
+
+#include "svga_winsys.h"
+
+
+#define VMW_GMR_POOL_SIZE (16*1024*1024)
+
+
+struct pb_manager;
+struct vmw_region;
+
+
+struct vmw_winsys_screen
+{
+   struct svga_winsys_screen base;
+
+   boolean use_old_scanout_flag;
+
+   struct {
+      volatile uint32_t *fifo_map;
+      uint64_t last_fence;
+      int drm_fd;
+   } ioctl;
+
+   struct {
+      struct pb_manager *gmr;
+      struct pb_manager *gmr_mm;
+      struct pb_manager *gmr_fenced;
+   } pools;
+};
+
+
+static INLINE struct vmw_winsys_screen *
+vmw_winsys_screen(struct svga_winsys_screen *base)
+{
+   return (struct vmw_winsys_screen *)base;
+}
+
+/*  */
+uint32
+vmw_ioctl_context_create(struct vmw_winsys_screen *vws);
+
+void
+vmw_ioctl_context_destroy(struct vmw_winsys_screen *vws,
+                          uint32 cid);
+
+uint32
+vmw_ioctl_surface_create(struct vmw_winsys_screen *vws,
+                              SVGA3dSurfaceFlags flags,
+                              SVGA3dSurfaceFormat format,
+                              SVGA3dSize size,
+                              uint32 numFaces,
+                              uint32 numMipLevels);
+
+void
+vmw_ioctl_surface_destroy(struct vmw_winsys_screen *vws,
+                          uint32 sid);
+
+void
+vmw_ioctl_command(struct vmw_winsys_screen *vws,
+                       void *commands,
+                       uint32_t size,
+                       uint32_t *fence);
+
+struct vmw_region *
+vmw_ioctl_region_create(struct vmw_winsys_screen *vws, uint32_t size);
+
+void
+vmw_ioctl_region_destroy(struct vmw_region *region);
+
+struct SVGAGuestPtr
+vmw_ioctl_region_ptr(struct vmw_region *region);
+
+void *
+vmw_ioctl_region_map(struct vmw_region *region);
+void
+vmw_ioctl_region_unmap(struct vmw_region *region);
+
+
+int
+vmw_ioctl_fence_finish(struct vmw_winsys_screen *vws,
+                       uint32_t fence);
+
+int
+vmw_ioctl_fence_signalled(struct vmw_winsys_screen *vws,
+                          uint32_t fence);
+
+
+/* Initialize parts of vmw_winsys_screen at startup:
+ */
+boolean vmw_ioctl_init(struct vmw_winsys_screen *vws);
+boolean vmw_pools_init(struct vmw_winsys_screen *vws);
+boolean vmw_winsys_screen_init_svga(struct vmw_winsys_screen *vws);
+
+void vmw_ioctl_cleanup(struct vmw_winsys_screen *vws);
+void vmw_pools_cleanup(struct vmw_winsys_screen *vws);
+
+struct vmw_winsys_screen *vmw_winsys_create(int fd, boolean use_old_scanout_flag);
+void vmw_winsys_destroy(struct vmw_winsys_screen *sws);
+
+
+#endif /* VMW_SCREEN_H_ */
diff --git a/src/gallium/winsys/svga/drm/vmw_screen_dri.c b/src/gallium/winsys/svga/drm/vmw_screen_dri.c
new file mode 100644
index 00000000000..657544dcb21
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_screen_dri.c
@@ -0,0 +1,373 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+
+#include "pipe/p_compiler.h"
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "util/u_format.h"
+#include "vmw_screen.h"
+
+#include "trace/tr_drm.h"
+
+#include "vmw_screen.h"
+#include "vmw_surface.h"
+#include "vmw_fence.h"
+#include "vmw_context.h"
+
+#include <state_tracker/dri1_api.h>
+#include <state_tracker/drm_api.h>
+#include <vmwgfx_drm.h>
+#include <xf86drm.h>
+
+#include <stdio.h>
+
+static struct svga_winsys_surface *
+vmw_drm_surface_from_handle(struct svga_winsys_screen *sws,
+			    struct winsys_handle *whandle,
+			    SVGA3dSurfaceFormat *format);
+static boolean
+vmw_drm_surface_get_handle(struct svga_winsys_screen *sws,
+			   struct svga_winsys_surface *surface,
+			   unsigned stride,
+			   struct winsys_handle *whandle);
+
+static struct dri1_api dri1_api_hooks;
+static struct dri1_api_version ddx_required = { 0, 1, 0 };
+static struct dri1_api_version ddx_compat = { 0, 0, 0 };
+static struct dri1_api_version dri_required = { 4, 0, 0 };
+static struct dri1_api_version dri_compat = { 4, 0, 0 };
+static struct dri1_api_version drm_required = { 1, 0, 0 };
+static struct dri1_api_version drm_compat = { 1, 0, 0 };
+static struct dri1_api_version drm_scanout = { 0, 9, 0 };
+
+static boolean
+vmw_dri1_check_version(const struct dri1_api_version *cur,
+		       const struct dri1_api_version *required,
+		       const struct dri1_api_version *compat,
+		       const char component[])
+{
+   if (cur->major > required->major && cur->major <= compat->major)
+      return TRUE;
+   if (cur->major == required->major && cur->minor >= required->minor)
+      return TRUE;
+
+   fprintf(stderr, "%s version failure.\n", component);
+   fprintf(stderr, "%s version is %d.%d.%d and this driver can only work\n"
+	   "with versions %d.%d.x through %d.x.x.\n",
+	   component,
+	   cur->major,
+	   cur->minor,
+	   cur->patch_level, required->major, required->minor, compat->major);
+   return FALSE;
+}
+
+/* This is actually the entrypoint to the entire driver, called by the
+ * libGL (or EGL, or ...) code via the drm_api_hooks table at the
+ * bottom of the file.
+ */
+static struct pipe_screen *
+vmw_drm_create_screen(struct drm_api *drm_api,
+                      int fd,
+                      struct drm_create_screen_arg *arg)
+{
+   struct vmw_winsys_screen *vws;
+   struct pipe_screen *screen;
+   struct dri1_create_screen_arg *dri1;
+   boolean use_old_scanout_flag = FALSE;
+
+   if (!arg || arg->mode == DRM_CREATE_NORMAL) {
+      struct dri1_api_version drm_ver;
+      drmVersionPtr ver;
+
+      ver = drmGetVersion(fd);
+      if (ver == NULL)
+	 return NULL;
+
+      drm_ver.major = ver->version_major;
+      drm_ver.minor = ver->version_minor;
+      drm_ver.patch_level = 0; /* ??? */
+
+      drmFreeVersion(ver);
+      if (!vmw_dri1_check_version(&drm_ver, &drm_required,
+				  &drm_compat, "vmwgfx drm driver"))
+	 return NULL;
+
+      if (!vmw_dri1_check_version(&drm_ver, &drm_scanout,
+				  &drm_compat, "use old scanout field (not a error)"))
+         use_old_scanout_flag = TRUE;
+   }
+
+   if (arg != NULL) {
+      switch (arg->mode) {
+      case DRM_CREATE_NORMAL:
+	 break;
+      case DRM_CREATE_DRI1:
+	 dri1 = (struct dri1_create_screen_arg *)arg;
+	 if (!vmw_dri1_check_version(&dri1->ddx_version, &ddx_required,
+				     &ddx_compat, "ddx - driver api"))
+	    return NULL;
+	 if (!vmw_dri1_check_version(&dri1->dri_version, &dri_required,
+				     &dri_compat, "dri info"))
+	    return NULL;
+	 if (!vmw_dri1_check_version(&dri1->drm_version, &drm_required,
+				     &drm_compat, "vmwgfx drm driver"))
+	    return NULL;
+	 if (!vmw_dri1_check_version(&dri1->drm_version, &drm_scanout,
+				     &drm_compat, "use old scanout field (not a error)"))
+	    use_old_scanout_flag = TRUE;
+	 dri1->api = &dri1_api_hooks;
+#if 0
+	 break;
+#else
+	 assert(!"No dri 1 support for now\n");
+	 return NULL;
+#endif
+      default:
+	 return NULL;
+      }
+   }
+
+   vws = vmw_winsys_create( fd, use_old_scanout_flag );
+   if (!vws)
+      goto out_no_vws;
+
+   /* XXX do this properly */
+   vws->base.surface_from_handle = vmw_drm_surface_from_handle;
+   vws->base.surface_get_handle = vmw_drm_surface_get_handle;
+
+   screen = svga_screen_create( &vws->base );
+   if (!screen)
+      goto out_no_screen;
+
+   return screen;
+
+   /* Failure cases:
+    */
+out_no_screen:
+   vmw_winsys_destroy( vws );
+
+out_no_vws:
+   return NULL;
+}
+
+static INLINE boolean
+vmw_dri1_intersect_src_bbox(struct drm_clip_rect *dst,
+			    int dst_x,
+			    int dst_y,
+			    const struct drm_clip_rect *src,
+			    const struct drm_clip_rect *bbox)
+{
+   int xy1;
+   int xy2;
+
+   xy1 = ((int)src->x1 > (int)bbox->x1 + dst_x) ? src->x1 :
+      (int)bbox->x1 + dst_x;
+   xy2 = ((int)src->x2 < (int)bbox->x2 + dst_x) ? src->x2 :
+      (int)bbox->x2 + dst_x;
+   if (xy1 >= xy2 || xy1 < 0)
+      return FALSE;
+
+   dst->x1 = xy1;
+   dst->x2 = xy2;
+
+   xy1 = ((int)src->y1 > (int)bbox->y1 + dst_y) ? src->y1 :
+      (int)bbox->y1 + dst_y;
+   xy2 = ((int)src->y2 < (int)bbox->y2 + dst_y) ? src->y2 :
+      (int)bbox->y2 + dst_y;
+   if (xy1 >= xy2 || xy1 < 0)
+      return FALSE;
+
+   dst->y1 = xy1;
+   dst->y2 = xy2;
+   return TRUE;
+}
+
+/**
+ * No fancy get-surface-from-sarea stuff here.
+ * Just use the present blit.
+ */
+
+static void
+vmw_dri1_present_locked(struct pipe_context *locked_pipe,
+			struct pipe_surface *surf,
+			const struct drm_clip_rect *rect,
+			unsigned int num_clip,
+			int x_draw, int y_draw,
+			const struct drm_clip_rect *bbox,
+			struct pipe_fence_handle **p_fence)
+{
+#if 0
+   struct svga_winsys_surface *srf =
+      svga_screen_texture_get_winsys_surface(surf->texture);
+   struct vmw_svga_winsys_surface *vsrf = vmw_svga_winsys_surface(srf);
+   struct vmw_winsys_screen *vws =
+      vmw_winsys_screen(svga_winsys_screen(locked_pipe->screen));
+   struct drm_clip_rect clip;
+   int i;
+   struct
+   {
+      SVGA3dCmdHeader header;
+      SVGA3dCmdPresent body;
+      SVGA3dCopyRect rect;
+   } cmd;
+   boolean visible = FALSE;
+   uint32_t fence_seq = 0;
+
+   VMW_FUNC;
+   cmd.header.id = SVGA_3D_CMD_PRESENT;
+   cmd.header.size = sizeof cmd.body + sizeof cmd.rect;
+   cmd.body.sid = vsrf->sid;
+
+   for (i = 0; i < num_clip; ++i) {
+      if (!vmw_dri1_intersect_src_bbox(&clip, x_draw, y_draw, rect++, bbox))
+	 continue;
+
+      cmd.rect.x = clip.x1;
+      cmd.rect.y = clip.y1;
+      cmd.rect.w = clip.x2 - clip.x1;
+      cmd.rect.h = clip.y2 - clip.y1;
+      cmd.rect.srcx = (int)clip.x1 - x_draw;
+      cmd.rect.srcy = (int)clip.y1 - y_draw;
+
+      vmw_printf("%s: Clip %d x %d y %d w %d h %d srcx %d srcy %d\n",
+		   __FUNCTION__,
+		   i,
+		   cmd.rect.x,
+		   cmd.rect.y,
+		   cmd.rect.w, cmd.rect.h, cmd.rect.srcx, cmd.rect.srcy);
+
+      vmw_ioctl_command(vws, &cmd, sizeof cmd.header + cmd.header.size,
+                        &fence_seq);
+      visible = TRUE;
+   }
+
+   *p_fence = (visible) ? vmw_pipe_fence(fence_seq) : NULL;
+   vmw_svga_winsys_surface_reference(&vsrf, NULL);
+#else
+   assert(!"No dri 1 support for now\n");
+#endif
+}
+
+static struct svga_winsys_surface *
+vmw_drm_surface_from_handle(struct svga_winsys_screen *sws,
+			    struct winsys_handle *whandle,
+			    SVGA3dSurfaceFormat *format)
+{
+    struct vmw_svga_winsys_surface *vsrf;
+    struct svga_winsys_surface *ssrf;
+    struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
+    union drm_vmw_surface_reference_arg arg;
+    struct drm_vmw_surface_arg *req = &arg.req;
+    struct drm_vmw_surface_create_req *rep = &arg.rep;
+    int ret;
+    int i;
+
+    /**
+     * The vmware device specific handle is the hardware SID.
+     * FIXME: We probably want to move this to the ioctl implementations.
+     */
+
+    memset(&arg, 0, sizeof(arg));
+    req->sid = whandle->handle;
+
+    ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_REF_SURFACE,
+			      &arg, sizeof(arg));
+
+    if (ret) {
+	fprintf(stderr, "Failed referencing shared surface. SID %d.\n"
+		"Error %d (%s).\n",
+		whandle->handle, ret, strerror(-ret));
+	return NULL;
+    }
+
+    if (rep->mip_levels[0] != 1) {
+	fprintf(stderr, "Incorrect number of mipmap levels on shared surface."
+		" SID %d, levels %d\n",
+		whandle->handle, rep->mip_levels[0]);
+	goto out_mip;
+    }
+
+    for (i=1; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
+	if (rep->mip_levels[i] != 0) {
+	    fprintf(stderr, "Incorrect number of faces levels on shared surface."
+		    " SID %d, face %d present.\n",
+		    whandle->handle, i);
+	    goto out_mip;
+	}
+    }
+
+    vsrf = CALLOC_STRUCT(vmw_svga_winsys_surface);
+    if (!vsrf)
+	goto out_mip;
+
+    pipe_reference_init(&vsrf->refcnt, 1);
+    p_atomic_set(&vsrf->validated, 0);
+    vsrf->screen = vws;
+    vsrf->sid = whandle->handle;
+    ssrf = svga_winsys_surface(vsrf);
+    *format = rep->format;
+
+    return ssrf;
+
+out_mip:
+    vmw_ioctl_surface_destroy(vws, whandle->handle);
+    return NULL;
+}
+
+static boolean
+vmw_drm_surface_get_handle(struct svga_winsys_screen *sws,
+			   struct svga_winsys_surface *surface,
+			   unsigned stride,
+			   struct winsys_handle *whandle)
+{
+    struct vmw_svga_winsys_surface *vsrf;
+
+    if (!surface)
+	return FALSE;
+
+    vsrf = vmw_svga_winsys_surface(surface);
+    whandle->handle = vsrf->sid;
+    whandle->stride = stride;
+
+    return TRUE;
+}
+
+
+static struct dri1_api dri1_api_hooks = {
+   .front_srf_locked = NULL,
+   .present_locked = vmw_dri1_present_locked
+};
+
+static struct drm_api vmw_drm_api_hooks = {
+   .name = "vmwgfx",
+   .driver_name = "vmwgfx",
+   .create_screen = vmw_drm_create_screen,
+};
+
+struct drm_api* drm_api_create()
+{
+   return trace_drm_create(&vmw_drm_api_hooks);
+}
diff --git a/src/gallium/winsys/svga/drm/vmw_screen_ioctl.c b/src/gallium/winsys/svga/drm/vmw_screen_ioctl.c
new file mode 100644
index 00000000000..5d81fa8c4a6
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_screen_ioctl.c
@@ -0,0 +1,529 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+/**
+ * @file
+ *
+ * Wrappers for DRM ioctl functionlaity used by the rest of the vmw
+ * drm winsys.
+ *
+ * Based on svgaicd_escape.c
+ */
+
+
+#include "svga_cmd.h"
+#include "util/u_memory.h"
+#include "util/u_math.h"
+#include "svgadump/svga_dump.h"
+#include "vmw_screen.h"
+#include "vmw_context.h"
+#include "xf86drm.h"
+#include "vmwgfx_drm.h"
+
+#include <sys/mman.h>
+#include <errno.h>
+#include <unistd.h>
+
+struct vmw_region
+{
+   SVGAGuestPtr ptr;
+   uint32_t handle;
+   uint64_t map_handle;
+   void *data;
+   uint32_t map_count;
+   int drm_fd;
+   uint32_t size;
+};
+
+/* XXX: This isn't a real hardware flag, but just a hack for kernel to
+ * know about primary surfaces. In newer versions of the kernel
+ * interface the driver uses a special field.
+ */
+#define SVGA3D_SURFACE_HINT_SCANOUT (1 << 9)
+
+static void
+vmw_check_last_cmd(struct vmw_winsys_screen *vws)
+{
+   static uint32_t buffer[16384];
+   struct drm_vmw_fifo_debug_arg arg;
+   int ret;
+
+   return;
+   memset(&arg, 0, sizeof(arg));
+   arg.debug_buffer = (unsigned long)buffer;
+   arg.debug_buffer_size = 65536;
+
+   ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_FIFO_DEBUG,
+			     &arg, sizeof(arg));
+
+   if (ret) {
+      debug_printf("%s Ioctl error: \"%s\".\n", __FUNCTION__, strerror(-ret));
+      return;
+   }
+
+   if (arg.did_not_fit) {
+      debug_printf("%s Command did not fit completely.\n", __FUNCTION__);
+   }
+
+   svga_dump_commands(buffer, arg.used_size);
+}
+
+static void
+vmw_ioctl_fifo_unmap(struct vmw_winsys_screen *vws, void *mapping)
+{
+   VMW_FUNC;
+   (void)munmap(mapping, getpagesize());
+}
+
+
+static void *
+vmw_ioctl_fifo_map(struct vmw_winsys_screen *vws,
+                   uint32_t fifo_offset )
+{
+   void *map;
+
+   VMW_FUNC;
+
+   map = mmap(NULL, getpagesize(), PROT_READ, MAP_SHARED,
+	      vws->ioctl.drm_fd, fifo_offset);
+
+   if (map == MAP_FAILED) {
+      debug_printf("Map failed %s\n", strerror(errno));
+      return NULL;
+   }
+
+   vmw_printf("Fifo (min) is 0x%08x\n", ((uint32_t *) map)[SVGA_FIFO_MIN]);
+
+   return map;
+}
+
+uint32
+vmw_ioctl_context_create(struct vmw_winsys_screen *vws)
+{
+   struct drm_vmw_context_arg c_arg;
+   int ret;
+
+   VMW_FUNC;
+
+   ret = drmCommandRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_CONTEXT,
+			&c_arg, sizeof(c_arg));
+
+   if (ret)
+      return -1;
+
+   vmw_check_last_cmd(vws);
+   vmw_printf("Context id is %d\n", c_arg.cid);
+
+   return c_arg.cid;
+}
+
+void
+vmw_ioctl_context_destroy(struct vmw_winsys_screen *vws, uint32 cid)
+{
+   struct drm_vmw_context_arg c_arg;
+
+   VMW_FUNC;
+
+   memset(&c_arg, 0, sizeof(c_arg));
+   c_arg.cid = cid;
+
+   (void)drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_UNREF_CONTEXT,
+			 &c_arg, sizeof(c_arg));
+
+   vmw_check_last_cmd(vws);
+}
+
+uint32
+vmw_ioctl_surface_create(struct vmw_winsys_screen *vws,
+			      SVGA3dSurfaceFlags flags,
+			      SVGA3dSurfaceFormat format,
+			      SVGA3dSize size,
+			      uint32_t numFaces, uint32_t numMipLevels)
+{
+   union drm_vmw_surface_create_arg s_arg;
+   struct drm_vmw_surface_create_req *req = &s_arg.req;
+   struct drm_vmw_surface_arg *rep = &s_arg.rep;
+   struct drm_vmw_size sizes[DRM_VMW_MAX_SURFACE_FACES*
+			     DRM_VMW_MAX_MIP_LEVELS];
+   struct drm_vmw_size *cur_size;
+   uint32_t iFace;
+   uint32_t iMipLevel;
+   int ret;
+
+   vmw_printf("%s flags %d format %d\n", __FUNCTION__, flags, format);
+
+   memset(&s_arg, 0, sizeof(s_arg));
+   if (vws->use_old_scanout_flag &&
+       (flags & SVGA3D_SURFACE_HINT_SCANOUT)) {
+      req->flags = (uint32_t) flags;
+      req->scanout = false;
+   } else if (flags & SVGA3D_SURFACE_HINT_SCANOUT) {
+      req->flags = (uint32_t) (flags & ~SVGA3D_SURFACE_HINT_SCANOUT);
+      req->scanout = true;
+   } else {
+      req->flags = (uint32_t) flags;
+      req->scanout = false;
+   }
+   req->format = (uint32_t) format;
+   req->shareable = 1;
+
+   assert(numFaces * numMipLevels < DRM_VMW_MAX_SURFACE_FACES*
+	  DRM_VMW_MAX_MIP_LEVELS);
+   cur_size = sizes;
+   for (iFace = 0; iFace < numFaces; ++iFace) {
+      SVGA3dSize mipSize = size;
+
+      req->mip_levels[iFace] = numMipLevels;
+      for (iMipLevel = 0; iMipLevel < numMipLevels; ++iMipLevel) {
+	 cur_size->width = mipSize.width;
+	 cur_size->height = mipSize.height;
+	 cur_size->depth = mipSize.depth;
+	 mipSize.width = MAX2(mipSize.width >> 1, 1);
+	 mipSize.height = MAX2(mipSize.height >> 1, 1);
+	 mipSize.depth = MAX2(mipSize.depth >> 1, 1);
+	 cur_size++;
+      }
+   }
+   for (iFace = numFaces; iFace < SVGA3D_MAX_SURFACE_FACES; ++iFace) {
+      req->mip_levels[iFace] = 0;
+   }
+
+   req->size_addr = (unsigned long)&sizes;
+
+   ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_SURFACE,
+			     &s_arg, sizeof(s_arg));
+
+   if (ret)
+      return -1;
+
+   vmw_printf("Surface id is %d\n", rep->sid);
+   vmw_check_last_cmd(vws);
+
+   return rep->sid;
+}
+
+void
+vmw_ioctl_surface_destroy(struct vmw_winsys_screen *vws, uint32 sid)
+{
+   struct drm_vmw_surface_arg s_arg;
+
+   VMW_FUNC;
+
+   memset(&s_arg, 0, sizeof(s_arg));
+   s_arg.sid = sid;
+
+   (void)drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_UNREF_SURFACE,
+			 &s_arg, sizeof(s_arg));
+   vmw_check_last_cmd(vws);
+
+}
+
+void
+vmw_ioctl_command(struct vmw_winsys_screen *vws, void *commands, uint32_t size,
+		       uint32_t * pfence)
+{
+   struct drm_vmw_execbuf_arg arg;
+   struct drm_vmw_fence_rep rep;
+   int ret;
+
+#ifdef DEBUG
+   {
+      static boolean firsttime = TRUE;
+      static boolean debug = FALSE;
+      static boolean skip = FALSE;
+      if (firsttime) {
+         debug = debug_get_bool_option("SVGA_DUMP_CMD", FALSE);
+         skip = debug_get_bool_option("SVGA_SKIP_CMD", FALSE);
+      }
+      if (debug) {
+         VMW_FUNC;
+         svga_dump_commands(commands, size);
+      }
+      firsttime = FALSE;
+      if (skip) {
+         size = 0;
+      }
+   }
+#endif
+
+   memset(&arg, 0, sizeof(arg));
+   memset(&rep, 0, sizeof(rep));
+
+   rep.error = -EFAULT;
+   arg.fence_rep = (unsigned long)&rep;
+   arg.commands = (unsigned long)commands;
+   arg.command_size = size;
+
+   do {
+       ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_EXECBUF, &arg, sizeof(arg));
+   } while(ret == -ERESTART);
+   if (ret) {
+      debug_printf("%s error %s.\n", __FUNCTION__, strerror(-ret));
+   }
+   if (rep.error) {
+
+      /*
+       * Kernel has synced and put the last fence sequence in the FIFO
+       * register.
+       */
+
+      if (rep.error == -EFAULT)
+	 rep.fence_seq = vws->ioctl.fifo_map[SVGA_FIFO_FENCE];
+
+      debug_printf("%s Fence error %s.\n", __FUNCTION__,
+		   strerror(-rep.error));
+   }
+
+   vws->ioctl.last_fence = rep.fence_seq;
+
+   if (pfence)
+      *pfence = rep.fence_seq;
+   vmw_check_last_cmd(vws);
+
+}
+
+
+struct vmw_region *
+vmw_ioctl_region_create(struct vmw_winsys_screen *vws, uint32_t size)
+{
+   struct vmw_region *region;
+   union drm_vmw_alloc_dmabuf_arg arg;
+   struct drm_vmw_alloc_dmabuf_req *req = &arg.req;
+   struct drm_vmw_dmabuf_rep *rep = &arg.rep;
+   int ret;
+
+   vmw_printf("%s: size = %u\n", __FUNCTION__, size);
+
+   region = CALLOC_STRUCT(vmw_region);
+   if (!region)
+      goto out_err1;
+
+   memset(&arg, 0, sizeof(arg));
+   req->size = size;
+   do {
+      ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_ALLOC_DMABUF, &arg,
+				sizeof(arg));
+   } while (ret == -ERESTART);
+
+   if (ret) {
+      debug_printf("IOCTL failed %d: %s\n", ret, strerror(-ret));
+      goto out_err1;
+   }
+
+   region->ptr.gmrId = rep->cur_gmr_id;
+   region->ptr.offset = rep->cur_gmr_offset;
+   region->data = NULL;
+   region->handle = rep->handle;
+   region->map_handle = rep->map_handle;
+   region->map_count = 0;
+   region->size = size;
+   region->drm_fd = vws->ioctl.drm_fd;
+
+   vmw_printf("   gmrId = %u, offset = %u\n",
+              region->ptr.gmrId, region->ptr.offset);
+
+   return region;
+
+ out_err1:
+   FREE(region);
+   return NULL;
+}
+
+void
+vmw_ioctl_region_destroy(struct vmw_region *region)
+{
+   struct drm_vmw_unref_dmabuf_arg arg;
+
+   vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
+              region->ptr.gmrId, region->ptr.offset);
+
+   if (region->data) {
+      munmap(region->data, region->size);
+      region->data = NULL;
+   }
+
+   memset(&arg, 0, sizeof(arg));
+   arg.handle = region->handle;
+   drmCommandWrite(region->drm_fd, DRM_VMW_UNREF_DMABUF, &arg, sizeof(arg));
+
+   FREE(region);
+}
+
+SVGAGuestPtr
+vmw_ioctl_region_ptr(struct vmw_region *region)
+{
+   return region->ptr;
+}
+
+void *
+vmw_ioctl_region_map(struct vmw_region *region)
+{
+   void *map;
+
+   vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
+              region->ptr.gmrId, region->ptr.offset);
+
+   if (region->data == NULL) {
+      map = mmap(NULL, region->size, PROT_READ | PROT_WRITE, MAP_SHARED,
+		 region->drm_fd, region->map_handle);
+      if (map == MAP_FAILED) {
+	 debug_printf("%s: Map failed.\n", __FUNCTION__);
+	 return NULL;
+      }
+
+      region->data = map;
+   }
+
+   ++region->map_count;
+
+   return region->data;
+}
+
+void
+vmw_ioctl_region_unmap(struct vmw_region *region)
+{
+   vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
+              region->ptr.gmrId, region->ptr.offset);
+   --region->map_count;
+}
+
+
+int
+vmw_ioctl_fence_signalled(struct vmw_winsys_screen *vws,
+                          uint32_t fence)
+{
+   uint32_t expected;
+   uint32_t current;
+   
+   assert(fence);
+   if(!fence)
+      return 0;
+   
+   expected = fence;
+   current = vws->ioctl.fifo_map[SVGA_FIFO_FENCE];
+   
+   if ((int32)(current - expected) >= 0)
+      return 0; /* fence passed */
+   else
+      return -1;
+}
+
+
+static void
+vmw_ioctl_sync(struct vmw_winsys_screen *vws, 
+		    uint32_t fence)
+{
+   uint32_t cur_fence;
+   struct drm_vmw_fence_wait_arg arg;
+   int ret;
+
+   vmw_printf("%s: fence = %lu\n", __FUNCTION__,
+              (unsigned long)fence);
+
+   cur_fence = vws->ioctl.fifo_map[SVGA_FIFO_FENCE];
+   vmw_printf("%s: Fence id read is 0x%08x\n", __FUNCTION__,
+              (unsigned int)cur_fence);
+
+   if ((cur_fence - fence) < (1 << 24))
+      return;
+
+   memset(&arg, 0, sizeof(arg));
+   arg.sequence = fence;
+
+   do {
+       ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_FENCE_WAIT, &arg,
+				 sizeof(arg));
+   } while (ret == -ERESTART);
+}
+
+
+int
+vmw_ioctl_fence_finish(struct vmw_winsys_screen *vws,
+                       uint32_t fence)
+{
+   assert(fence);
+   
+   if(fence) {
+      if(vmw_ioctl_fence_signalled(vws, fence) != 0) {
+         vmw_ioctl_sync(vws, fence);
+      }
+   }
+   
+   return 0;
+}
+
+
+boolean
+vmw_ioctl_init(struct vmw_winsys_screen *vws)
+{
+   struct drm_vmw_getparam_arg gp_arg;
+   int ret;
+
+   VMW_FUNC;
+
+   memset(&gp_arg, 0, sizeof(gp_arg));
+   gp_arg.param = DRM_VMW_PARAM_3D;
+   ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_GET_PARAM,
+			     &gp_arg, sizeof(gp_arg));
+   if (ret || gp_arg.value == 0) {
+      debug_printf("No 3D enabled (%i, %s)\n", ret, strerror(-ret));
+      goto out_err1;
+   }
+
+   memset(&gp_arg, 0, sizeof(gp_arg));
+   gp_arg.param = DRM_VMW_PARAM_FIFO_OFFSET;
+   ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_GET_PARAM,
+			     &gp_arg, sizeof(gp_arg));
+
+   if (ret) {
+      debug_printf("GET_PARAM on %d returned %d: %s\n",
+		   vws->ioctl.drm_fd, ret, strerror(-ret));
+      goto out_err1;
+   }
+
+   vmw_printf("Offset to map is 0x%08llx\n",
+              (unsigned long long)gp_arg.value);
+
+   vws->ioctl.fifo_map = vmw_ioctl_fifo_map(vws, gp_arg.value);
+   if (vws->ioctl.fifo_map == NULL)
+      goto out_err1;
+
+   vmw_printf("%s OK\n", __FUNCTION__);
+   return TRUE;
+
+ out_err1:
+   debug_printf("%s Failed\n", __FUNCTION__);
+   return FALSE;
+}
+
+
+
+void
+vmw_ioctl_cleanup(struct vmw_winsys_screen *vws)
+{
+   VMW_FUNC;
+
+   vmw_ioctl_fifo_unmap(vws, (void *)vws->ioctl.fifo_map);
+}
diff --git a/src/gallium/winsys/svga/drm/vmw_screen_pools.c b/src/gallium/winsys/svga/drm/vmw_screen_pools.c
new file mode 100644
index 00000000000..b9823d78575
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_screen_pools.c
@@ -0,0 +1,97 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+
+#include "vmw_screen.h"
+
+#include "vmw_buffer.h"
+#include "vmw_fence.h"
+
+#include "pipebuffer/pb_buffer.h"
+#include "pipebuffer/pb_bufmgr.h"
+
+void
+vmw_pools_cleanup(struct vmw_winsys_screen *vws)
+{
+   if(vws->pools.gmr_fenced)
+      vws->pools.gmr_fenced->destroy(vws->pools.gmr_fenced);
+
+   /* gmr_mm pool is already destroyed above */
+
+   if(vws->pools.gmr)
+      vws->pools.gmr->destroy(vws->pools.gmr);
+}
+
+
+boolean
+vmw_pools_init(struct vmw_winsys_screen *vws)
+{
+   vws->pools.gmr = vmw_gmr_bufmgr_create(vws);
+   if(!vws->pools.gmr)
+      goto error;
+
+   vws->pools.gmr_mm = mm_bufmgr_create(vws->pools.gmr,
+                                        VMW_GMR_POOL_SIZE,
+                                        12 /* 4096 alignment */);
+   if(!vws->pools.gmr_mm)
+      goto error;
+
+   /*
+    * GMR buffers are typically shortlived, but it's possible that at a given
+    * instance a buffer is mapped. So to avoid stalling we tell pipebuffer to
+    * forbid creation of buffers beyond half the GMR pool size,
+    *
+    * XXX: It is unclear weather we want to limit the total amount of temporary
+    * malloc memory used to backup unvalidated GMR buffers. On one hand it is
+    * preferrable to fail an allocation than exhausting the guest memory with
+    * temporary data, but on the other hand it is possible that a stupid
+    * application creates large vertex buffers and does not use them for a long
+    * time -- since the svga pipe driver only emits the DMA uploads when a
+    * buffer is used for drawing this would effectively disabling swapping GMR
+    * buffers to memory. So far, the preemptively flush already seems to keep
+    * total allocated memory within relatively small numbers, so we don't
+    * limit.
+    */
+   vws->pools.gmr_fenced = fenced_bufmgr_create(
+      vws->pools.gmr_mm,
+      vmw_fence_ops_create(vws),
+      VMW_GMR_POOL_SIZE/2,
+      ~0);
+
+#ifdef DEBUG
+   vws->pools.gmr_fenced = pb_debug_manager_create(vws->pools.gmr_fenced,
+						   4096,
+						   4096);
+#endif
+   if(!vws->pools.gmr_fenced)
+      goto error;
+
+   return TRUE;
+
+error:
+   vmw_pools_cleanup(vws);
+   return FALSE;
+}
+
diff --git a/src/gallium/winsys/svga/drm/vmw_screen_svga.c b/src/gallium/winsys/svga/drm/vmw_screen_svga.c
new file mode 100644
index 00000000000..2b4e80f0039
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_screen_svga.c
@@ -0,0 +1,295 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+/**
+ * @file
+ * This file implements the SVGA interface into this winsys, defined
+ * in drivers/svga/svga_winsys.h.
+ *
+ * @author Keith Whitwell
+ * @author Jose Fonseca
+ */
+
+
+#include "svga_cmd.h"
+#include "svga3d_caps.h"
+
+#include "util/u_inlines.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "pipebuffer/pb_buffer.h"
+#include "pipebuffer/pb_bufmgr.h"
+#include "svga_winsys.h"
+#include "vmw_context.h"
+#include "vmw_screen.h"
+#include "vmw_surface.h"
+#include "vmw_buffer.h"
+#include "vmw_fence.h"
+
+
+static struct svga_winsys_buffer *
+vmw_svga_winsys_buffer_create(struct svga_winsys_screen *sws,
+                              unsigned alignment,
+                              unsigned usage,
+                              unsigned size)
+{
+   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
+   struct pb_desc desc;
+   struct pb_manager *provider;
+   struct pb_buffer *buffer;
+
+   memset(&desc, 0, sizeof desc);
+   desc.alignment = alignment;
+   desc.usage = usage;
+
+   provider = vws->pools.gmr_fenced;
+
+   assert(provider);
+   buffer = provider->create_buffer(provider, size, &desc);
+   if(!buffer)
+      return NULL;
+
+   return vmw_svga_winsys_buffer(buffer);
+}
+
+
+static void *
+vmw_svga_winsys_buffer_map(struct svga_winsys_screen *sws,
+                           struct svga_winsys_buffer *buf,
+                           unsigned flags)
+{
+   (void)sws;
+   return pb_map(vmw_pb_buffer(buf), flags);
+}
+
+
+static void
+vmw_svga_winsys_buffer_unmap(struct svga_winsys_screen *sws,
+                             struct svga_winsys_buffer *buf)
+{
+   (void)sws;
+   pb_unmap(vmw_pb_buffer(buf));
+}
+
+
+static void
+vmw_svga_winsys_buffer_destroy(struct svga_winsys_screen *sws,
+                               struct svga_winsys_buffer *buf)
+{
+   struct pb_buffer *pbuf = vmw_pb_buffer(buf);
+   (void)sws;
+   pb_reference(&pbuf, NULL);
+}
+
+
+static void
+vmw_svga_winsys_fence_reference(struct svga_winsys_screen *sws,
+                                struct pipe_fence_handle **pdst,
+                                struct pipe_fence_handle *src)
+{
+   (void)sws;
+   *pdst = src;
+}
+
+
+static int
+vmw_svga_winsys_fence_signalled(struct svga_winsys_screen *sws,
+                                struct pipe_fence_handle *fence,
+                                unsigned flag)
+{
+   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
+   (void)flag;
+   return vmw_ioctl_fence_signalled(vws, vmw_fence(fence));
+}
+
+
+static int
+vmw_svga_winsys_fence_finish(struct svga_winsys_screen *sws,
+                             struct pipe_fence_handle *fence,
+                             unsigned flag)
+{
+   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
+   (void)flag;
+   return vmw_ioctl_fence_finish(vws, vmw_fence(fence));
+}
+
+
+
+static struct svga_winsys_surface *
+vmw_svga_winsys_surface_create(struct svga_winsys_screen *sws,
+                               SVGA3dSurfaceFlags flags,
+                               SVGA3dSurfaceFormat format,
+                               SVGA3dSize size,
+                               uint32 numFaces,
+                               uint32 numMipLevels)
+{
+   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
+   struct vmw_svga_winsys_surface *surface;
+
+   surface = CALLOC_STRUCT(vmw_svga_winsys_surface);
+   if(!surface)
+      goto no_surface;
+
+   pipe_reference_init(&surface->refcnt, 1);
+   p_atomic_set(&surface->validated, 0);
+   surface->screen = vws;
+   surface->sid = vmw_ioctl_surface_create(vws,
+                                           flags, format, size,
+                                           numFaces, numMipLevels);
+   if(surface->sid == SVGA3D_INVALID_ID)
+      goto no_sid;
+
+   return svga_winsys_surface(surface);
+
+no_sid:
+   FREE(surface);
+no_surface:
+   return NULL;
+}
+
+
+static boolean
+vmw_svga_winsys_surface_is_flushed(struct svga_winsys_screen *sws,
+                                   struct svga_winsys_surface *surface)
+{
+   struct vmw_svga_winsys_surface *vsurf = vmw_svga_winsys_surface(surface);
+   return (p_atomic_read(&vsurf->validated) == 0);
+}
+
+
+static void
+vmw_svga_winsys_surface_ref(struct svga_winsys_screen *sws,
+			    struct svga_winsys_surface **pDst,
+			    struct svga_winsys_surface *src)
+{
+   struct vmw_svga_winsys_surface *d_vsurf = vmw_svga_winsys_surface(*pDst);
+   struct vmw_svga_winsys_surface *s_vsurf = vmw_svga_winsys_surface(src);
+
+   vmw_svga_winsys_surface_reference(&d_vsurf, s_vsurf);
+   *pDst = svga_winsys_surface(d_vsurf);
+}
+
+
+static void
+vmw_svga_winsys_destroy(struct svga_winsys_screen *sws)
+{
+   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
+
+   vmw_winsys_destroy(vws);
+}
+
+
+static boolean
+vmw_svga_winsys_get_cap(struct svga_winsys_screen *sws,
+                        SVGA3dDevCapIndex index,
+                        SVGA3dDevCapResult *result)
+{
+   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
+   const uint32 *capsBlock;
+   const SVGA3dCapsRecord *capsRecord = NULL;
+   uint32 offset;
+   const SVGA3dCapPair *capArray;
+   int numCaps, first, last;
+
+   if(!vws->ioctl.fifo_map)
+      return FALSE;
+
+   if(vws->ioctl.fifo_map[SVGA_FIFO_3D_HWVERSION] < SVGA3D_HWVERSION_WS6_B1)
+      return FALSE;
+
+   /*
+    * Search linearly through the caps block records for the specified type.
+    */
+   capsBlock = (const uint32 *)&vws->ioctl.fifo_map[SVGA_FIFO_3D_CAPS];
+   for (offset = 0; capsBlock[offset] != 0; offset += capsBlock[offset]) {
+      const SVGA3dCapsRecord *record;
+      assert(offset < SVGA_FIFO_3D_CAPS_SIZE);
+      record = (const SVGA3dCapsRecord *) (capsBlock + offset);
+      if ((record->header.type >= SVGA3DCAPS_RECORD_DEVCAPS_MIN) &&
+          (record->header.type <= SVGA3DCAPS_RECORD_DEVCAPS_MAX) &&
+          (!capsRecord || (record->header.type > capsRecord->header.type))) {
+         capsRecord = record;
+      }
+   }
+
+   if(!capsRecord)
+      return FALSE;
+
+   /*
+    * Calculate the number of caps from the size of the record.
+    */
+   capArray = (const SVGA3dCapPair *) capsRecord->data;
+   numCaps = (int) ((capsRecord->header.length * sizeof(uint32) -
+                     sizeof capsRecord->header) / (2 * sizeof(uint32)));
+
+   /*
+    * Binary-search for the cap with the specified index.
+    */
+   for (first = 0, last = numCaps - 1; first <= last; ) {
+      int mid = (first + last) / 2;
+
+      if ((SVGA3dDevCapIndex) capArray[mid][0] == index) {
+         /*
+          * Found it.
+          */
+         result->u = capArray[mid][1];
+         return TRUE;
+      }
+
+      /*
+       * Divide and conquer.
+       */
+      if ((SVGA3dDevCapIndex) capArray[mid][0] > index) {
+         last = mid - 1;
+      } else {
+         first = mid + 1;
+      }
+   }
+
+   return FALSE;
+}
+
+
+boolean
+vmw_winsys_screen_init_svga(struct vmw_winsys_screen *vws)
+{
+   vws->base.destroy = vmw_svga_winsys_destroy;
+   vws->base.get_cap = vmw_svga_winsys_get_cap;
+   vws->base.context_create = vmw_svga_winsys_context_create;
+   vws->base.surface_create = vmw_svga_winsys_surface_create;
+   vws->base.surface_is_flushed = vmw_svga_winsys_surface_is_flushed;
+   vws->base.surface_reference = vmw_svga_winsys_surface_ref;
+   vws->base.buffer_create = vmw_svga_winsys_buffer_create;
+   vws->base.buffer_map = vmw_svga_winsys_buffer_map;
+   vws->base.buffer_unmap = vmw_svga_winsys_buffer_unmap;
+   vws->base.buffer_destroy = vmw_svga_winsys_buffer_destroy;
+   vws->base.fence_reference = vmw_svga_winsys_fence_reference;
+   vws->base.fence_signalled = vmw_svga_winsys_fence_signalled;
+   vws->base.fence_finish = vmw_svga_winsys_fence_finish;
+
+   return TRUE;
+}
+
+
diff --git a/src/gallium/winsys/svga/drm/vmw_surface.c b/src/gallium/winsys/svga/drm/vmw_surface.c
new file mode 100644
index 00000000000..5f1b9ad5770
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_surface.c
@@ -0,0 +1,61 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+
+#include "svga_cmd.h"
+#include "util/u_debug.h"
+#include "util/u_memory.h"
+
+#include "vmw_surface.h"
+#include "vmw_screen.h"
+
+void
+vmw_svga_winsys_surface_reference(struct vmw_svga_winsys_surface **pdst,
+                                  struct vmw_svga_winsys_surface *src)
+{
+   struct pipe_reference *src_ref;
+   struct pipe_reference *dst_ref;
+   struct vmw_svga_winsys_surface *dst;
+
+   if(pdst == NULL || *pdst == src)
+      return;
+
+   dst = *pdst;
+
+   src_ref = src ? &src->refcnt : NULL;
+   dst_ref = dst ? &dst->refcnt : NULL;
+
+   if (pipe_reference(dst_ref, src_ref)) {
+      vmw_ioctl_surface_destroy(dst->screen, dst->sid);
+#ifdef DEBUG
+      /* to detect dangling pointers */
+      assert(p_atomic_read(&dst->validated) == 0);
+      dst->sid = SVGA3D_INVALID_ID;
+#endif
+      FREE(dst);
+   }
+
+   *pdst = src;
+}
diff --git a/src/gallium/winsys/svga/drm/vmw_surface.h b/src/gallium/winsys/svga/drm/vmw_surface.h
new file mode 100644
index 00000000000..3d61595c288
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_surface.h
@@ -0,0 +1,79 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+/**
+ * @file
+ * Surfaces for VMware SVGA winsys.
+ * 
+ * @author Jose Fonseca <[email protected]>
+ */
+
+
+#ifndef VMW_SURFACE_H_
+#define VMW_SURFACE_H_
+
+
+#include "pipe/p_compiler.h"
+#include "util/u_atomic.h"
+#include "util/u_inlines.h"
+
+#define VMW_MAX_PRESENTS 3
+
+
+
+struct vmw_svga_winsys_surface
+{
+   int32_t validated; /* atomic */
+   struct pipe_reference refcnt;
+
+   struct vmw_winsys_screen *screen;
+   uint32_t sid;
+
+   /* FIXME: make this thread safe */
+   unsigned next_present_no;
+   uint32_t present_fences[VMW_MAX_PRESENTS];
+};
+
+
+static INLINE struct svga_winsys_surface *
+svga_winsys_surface(struct vmw_svga_winsys_surface *surf)
+{
+   assert(!surf || surf->sid != SVGA3D_INVALID_ID);
+   return (struct svga_winsys_surface *)surf;
+}
+
+
+static INLINE struct vmw_svga_winsys_surface *
+vmw_svga_winsys_surface(struct svga_winsys_surface *surf)
+{
+   return (struct vmw_svga_winsys_surface *)surf;
+}
+
+
+void
+vmw_svga_winsys_surface_reference(struct vmw_svga_winsys_surface **pdst,
+                                  struct vmw_svga_winsys_surface *src);
+
+#endif /* VMW_SURFACE_H_ */
diff --git a/src/gallium/winsys/svga/drm/vmwgfx_drm.h b/src/gallium/winsys/svga/drm/vmwgfx_drm.h
new file mode 100644
index 00000000000..47914bdb711
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmwgfx_drm.h
@@ -0,0 +1,545 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef __VMWGFX_DRM_H__
+#define __VMWGFX_DRM_H__
+
+#define DRM_VMW_MAX_SURFACE_FACES 6
+#define DRM_VMW_MAX_MIP_LEVELS 24
+
+#define DRM_VMW_EXT_NAME_LEN 128
+
+#define DRM_VMW_GET_PARAM            0
+#define DRM_VMW_ALLOC_DMABUF         1
+#define DRM_VMW_UNREF_DMABUF         2
+#define DRM_VMW_CURSOR_BYPASS        3
+/* guarded by DRM_VMW_PARAM_NUM_STREAMS != 0*/
+#define DRM_VMW_CONTROL_STREAM       4
+#define DRM_VMW_CLAIM_STREAM         5
+#define DRM_VMW_UNREF_STREAM         6
+/* guarded by DRM_VMW_PARAM_3D == 1 */
+#define DRM_VMW_CREATE_CONTEXT       7
+#define DRM_VMW_UNREF_CONTEXT        8
+#define DRM_VMW_CREATE_SURFACE       9
+#define DRM_VMW_UNREF_SURFACE        10
+#define DRM_VMW_REF_SURFACE          11
+#define DRM_VMW_EXECBUF              12
+#define DRM_VMW_FIFO_DEBUG           13
+#define DRM_VMW_FENCE_WAIT           14
+
+
+/*************************************************************************/
+/**
+ * DRM_VMW_GET_PARAM - get device information.
+ *
+ * DRM_VMW_PARAM_FIFO_OFFSET:
+ * Offset to use to map the first page of the FIFO read-only.
+ * The fifo is mapped using the mmap() system call on the drm device.
+ *
+ * DRM_VMW_PARAM_OVERLAY_IOCTL:
+ * Does the driver support the overlay ioctl.
+ */
+
+#define DRM_VMW_PARAM_NUM_STREAMS      0
+#define DRM_VMW_PARAM_NUM_FREE_STREAMS 1
+#define DRM_VMW_PARAM_3D               2
+#define DRM_VMW_PARAM_FIFO_OFFSET      3
+#define DRM_VMW_PARAM_HW_CAPS          4
+#define DRM_VMW_PARAM_FIFO_CAPS        5
+
+/**
+ * struct drm_vmw_getparam_arg
+ *
+ * @value: Returned value. //Out
+ * @param: Parameter to query. //In.
+ *
+ * Argument to the DRM_VMW_GET_PARAM Ioctl.
+ */
+
+struct drm_vmw_getparam_arg {
+	uint64_t value;
+	uint32_t param;
+	uint32_t pad64;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_CREATE_CONTEXT - Create a host context.
+ *
+ * Allocates a device unique context id, and queues a create context command
+ * for the host. Does not wait for host completion.
+ */
+
+/**
+ * struct drm_vmw_context_arg
+ *
+ * @cid: Device unique context ID.
+ *
+ * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
+ * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
+ */
+
+struct drm_vmw_context_arg {
+	int32_t cid;
+	uint32_t pad64;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_CONTEXT - Create a host context.
+ *
+ * Frees a global context id, and queues a destroy host command for the host.
+ * Does not wait for host completion. The context ID can be used directly
+ * in the command stream and shows up as the same context ID on the host.
+ */
+
+/*************************************************************************/
+/**
+ * DRM_VMW_CREATE_SURFACE - Create a host suface.
+ *
+ * Allocates a device unique surface id, and queues a create surface command
+ * for the host. Does not wait for host completion. The surface ID can be
+ * used directly in the command stream and shows up as the same surface
+ * ID on the host.
+ */
+
+/**
+ * struct drm_wmv_surface_create_req
+ *
+ * @flags: Surface flags as understood by the host.
+ * @format: Surface format as understood by the host.
+ * @mip_levels: Number of mip levels for each face.
+ * An unused face should have 0 encoded.
+ * @size_addr: Address of a user-space array of sruct drm_vmw_size
+ * cast to an uint64_t for 32-64 bit compatibility.
+ * The size of the array should equal the total number of mipmap levels.
+ * @shareable: Boolean whether other clients (as identified by file descriptors)
+ * may reference this surface.
+ * @scanout: Boolean whether the surface is intended to be used as a
+ * scanout.
+ *
+ * Input data to the DRM_VMW_CREATE_SURFACE Ioctl.
+ * Output data from the DRM_VMW_REF_SURFACE Ioctl.
+ */
+
+struct drm_vmw_surface_create_req {
+	uint32_t flags;
+	uint32_t format;
+	uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
+	uint64_t size_addr;
+	int32_t shareable;
+	int32_t scanout;
+};
+
+/**
+ * struct drm_wmv_surface_arg
+ *
+ * @sid: Surface id of created surface or surface to destroy or reference.
+ *
+ * Output data from the DRM_VMW_CREATE_SURFACE Ioctl.
+ * Input argument to the DRM_VMW_UNREF_SURFACE Ioctl.
+ * Input argument to the DRM_VMW_REF_SURFACE Ioctl.
+ */
+
+struct drm_vmw_surface_arg {
+	int32_t sid;
+	uint32_t pad64;
+};
+
+/**
+ * struct drm_vmw_size ioctl.
+ *
+ * @width - mip level width
+ * @height - mip level height
+ * @depth - mip level depth
+ *
+ * Description of a mip level.
+ * Input data to the DRM_WMW_CREATE_SURFACE Ioctl.
+ */
+
+struct drm_vmw_size {
+	uint32_t width;
+	uint32_t height;
+	uint32_t depth;
+	uint32_t pad64;
+};
+
+/**
+ * union drm_vmw_surface_create_arg
+ *
+ * @rep: Output data as described above.
+ * @req: Input data as described above.
+ *
+ * Argument to the DRM_VMW_CREATE_SURFACE Ioctl.
+ */
+
+union drm_vmw_surface_create_arg {
+	struct drm_vmw_surface_arg rep;
+	struct drm_vmw_surface_create_req req;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_REF_SURFACE - Reference a host surface.
+ *
+ * Puts a reference on a host surface with a give sid, as previously
+ * returned by the DRM_VMW_CREATE_SURFACE ioctl.
+ * A reference will make sure the surface isn't destroyed while we hold
+ * it and will allow the calling client to use the surface ID in the command
+ * stream.
+ *
+ * On successful return, the Ioctl returns the surface information given
+ * in the DRM_VMW_CREATE_SURFACE ioctl.
+ */
+
+/**
+ * union drm_vmw_surface_reference_arg
+ *
+ * @rep: Output data as described above.
+ * @req: Input data as described above.
+ *
+ * Argument to the DRM_VMW_REF_SURFACE Ioctl.
+ */
+
+union drm_vmw_surface_reference_arg {
+	struct drm_vmw_surface_create_req rep;
+	struct drm_vmw_surface_arg req;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_SURFACE - Unreference a host surface.
+ *
+ * Clear a reference previously put on a host surface.
+ * When all references are gone, including the one implicitly placed
+ * on creation,
+ * a destroy surface command will be queued for the host.
+ * Does not wait for completion.
+ */
+
+/*************************************************************************/
+/**
+ * DRM_VMW_EXECBUF
+ *
+ * Submit a command buffer for execution on the host, and return a
+ * fence sequence that when signaled, indicates that the command buffer has
+ * executed.
+ */
+
+/**
+ * struct drm_vmw_execbuf_arg
+ *
+ * @commands: User-space address of a command buffer cast to an uint64_t.
+ * @command-size: Size in bytes of the command buffer.
+ * @throttle-us: Sleep until software is less than @throttle_us
+ * microseconds ahead of hardware. The driver may round this value
+ * to the nearest kernel tick.
+ * @fence_rep: User-space address of a struct drm_vmw_fence_rep cast to an
+ * uint64_t.
+ * @version: Allows expanding the execbuf ioctl parameters without breaking
+ * backwards compatibility, since user-space will always tell the kernel
+ * which version it uses.
+ * @flags: Execbuf flags. None currently.
+ *
+ * Argument to the DRM_VMW_EXECBUF Ioctl.
+ */
+
+#define DRM_VMW_EXECBUF_VERSION 0
+
+struct drm_vmw_execbuf_arg {
+	uint64_t commands;
+	uint32_t command_size;
+	uint32_t throttle_us;
+	uint64_t fence_rep;
+	 uint32_t version;
+	 uint32_t flags;
+};
+
+/**
+ * struct drm_vmw_fence_rep
+ *
+ * @fence_seq: Fence sequence associated with a command submission.
+ * @error: This member should've been set to -EFAULT on submission.
+ * The following actions should be take on completion:
+ * error == -EFAULT: Fence communication failed. The host is synchronized.
+ * Use the last fence id read from the FIFO fence register.
+ * error != 0 && error != -EFAULT:
+ * Fence submission failed. The host is synchronized. Use the fence_seq member.
+ * error == 0: All is OK, The host may not be synchronized.
+ * Use the fence_seq member.
+ *
+ * Input / Output data to the DRM_VMW_EXECBUF Ioctl.
+ */
+
+struct drm_vmw_fence_rep {
+	uint64_t fence_seq;
+	int32_t error;
+	uint32_t pad64;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_ALLOC_DMABUF
+ *
+ * Allocate a DMA buffer that is visible also to the host.
+ * NOTE: The buffer is
+ * identified by a handle and an offset, which are private to the guest, but
+ * useable in the command stream. The guest kernel may translate these
+ * and patch up the command stream accordingly. In the future, the offset may
+ * be zero at all times, or it may disappear from the interface before it is
+ * fixed.
+ *
+ * The DMA buffer may stay user-space mapped in the guest at all times,
+ * and is thus suitable for sub-allocation.
+ *
+ * DMA buffers are mapped using the mmap() syscall on the drm device.
+ */
+
+/**
+ * struct drm_vmw_alloc_dmabuf_req
+ *
+ * @size: Required minimum size of the buffer.
+ *
+ * Input data to the DRM_VMW_ALLOC_DMABUF Ioctl.
+ */
+
+struct drm_vmw_alloc_dmabuf_req {
+	uint32_t size;
+	uint32_t pad64;
+};
+
+/**
+ * struct drm_vmw_dmabuf_rep
+ *
+ * @map_handle: Offset to use in the mmap() call used to map the buffer.
+ * @handle: Handle unique to this buffer. Used for unreferencing.
+ * @cur_gmr_id: GMR id to use in the command stream when this buffer is
+ * referenced. See not above.
+ * @cur_gmr_offset: Offset to use in the command stream when this buffer is
+ * referenced. See note above.
+ *
+ * Output data from the DRM_VMW_ALLOC_DMABUF Ioctl.
+ */
+
+struct drm_vmw_dmabuf_rep {
+	uint64_t map_handle;
+	uint32_t handle;
+	uint32_t cur_gmr_id;
+	uint32_t cur_gmr_offset;
+	uint32_t pad64;
+};
+
+/**
+ * union drm_vmw_dmabuf_arg
+ *
+ * @req: Input data as described above.
+ * @rep: Output data as described above.
+ *
+ * Argument to the DRM_VMW_ALLOC_DMABUF Ioctl.
+ */
+
+union drm_vmw_alloc_dmabuf_arg {
+	struct drm_vmw_alloc_dmabuf_req req;
+	struct drm_vmw_dmabuf_rep rep;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_DMABUF - Free a DMA buffer.
+ *
+ */
+
+/**
+ * struct drm_vmw_unref_dmabuf_arg
+ *
+ * @handle: Handle indicating what buffer to free. Obtained from the
+ * DRM_VMW_ALLOC_DMABUF Ioctl.
+ *
+ * Argument to the DRM_VMW_UNREF_DMABUF Ioctl.
+ */
+
+struct drm_vmw_unref_dmabuf_arg {
+	uint32_t handle;
+	uint32_t pad64;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_FIFO_DEBUG - Get last FIFO submission.
+ *
+ * This IOCTL copies the last FIFO submission directly out of the FIFO buffer.
+ */
+
+/**
+ * struct drm_vmw_fifo_debug_arg
+ *
+ * @debug_buffer: User space address of a debug_buffer cast to an uint64_t //In
+ * @debug_buffer_size: Size in bytes of debug buffer //In
+ * @used_size: Number of bytes copied to the buffer // Out
+ * @did_not_fit: Boolean indicating that the fifo contents did not fit. //Out
+ *
+ * Argument to the DRM_VMW_FIFO_DEBUG Ioctl.
+ */
+
+struct drm_vmw_fifo_debug_arg {
+	uint64_t debug_buffer;
+	uint32_t debug_buffer_size;
+	uint32_t used_size;
+	int32_t did_not_fit;
+	uint32_t pad64;
+};
+
+struct drm_vmw_fence_wait_arg {
+	uint64_t sequence;
+	uint64_t kernel_cookie;
+	int32_t cookie_valid;
+	int32_t pad64;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_CONTROL_STREAM - Control overlays, aka streams.
+ *
+ * This IOCTL controls the overlay units of the svga device.
+ * The SVGA overlay units does not work like regular hardware units in
+ * that they do not automaticaly read back the contents of the given dma
+ * buffer. But instead only read back for each call to this ioctl, and
+ * at any point between this call being made and a following call that
+ * either changes the buffer or disables the stream.
+ */
+
+/**
+ * struct drm_vmw_rect
+ *
+ * Defines a rectangle. Used in the overlay ioctl to define
+ * source and destination rectangle.
+ */
+
+struct drm_vmw_rect {
+	int32_t x;
+	int32_t y;
+	uint32_t w;
+	uint32_t h;
+};
+
+/**
+ * struct drm_vmw_control_stream_arg
+ *
+ * @stream_id: Stearm to control
+ * @enabled: If false all following arguments are ignored.
+ * @handle: Handle to buffer for getting data from.
+ * @format: Format of the overlay as understood by the host.
+ * @width: Width of the overlay.
+ * @height: Height of the overlay.
+ * @size: Size of the overlay in bytes.
+ * @pitch: Array of pitches, the two last are only used for YUV12 formats.
+ * @offset: Offset from start of dma buffer to overlay.
+ * @src: Source rect, must be within the defined area above.
+ * @dst: Destination rect, x and y may be negative.
+ *
+ * Argument to the DRM_VMW_CONTROL_STREAM Ioctl.
+ */
+
+struct drm_vmw_control_stream_arg {
+	uint32_t stream_id;
+	uint32_t enabled;
+
+	uint32_t flags;
+	uint32_t color_key;
+
+	uint32_t handle;
+	uint32_t offset;
+	int32_t format;
+	uint32_t size;
+	uint32_t width;
+	uint32_t height;
+	uint32_t pitch[3];
+
+	uint32_t pad64;
+	struct drm_vmw_rect src;
+	struct drm_vmw_rect dst;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_CURSOR_BYPASS - Give extra information about cursor bypass.
+ *
+ */
+
+#define DRM_VMW_CURSOR_BYPASS_ALL    (1 << 0)
+#define DRM_VMW_CURSOR_BYPASS_FLAGS       (1)
+
+/**
+ * struct drm_vmw_cursor_bypass_arg
+ *
+ * @flags: Flags.
+ * @crtc_id: Crtc id, only used if DMR_CURSOR_BYPASS_ALL isn't passed.
+ * @xpos: X position of cursor.
+ * @ypos: Y position of cursor.
+ * @xhot: X hotspot.
+ * @yhot: Y hotspot.
+ *
+ * Argument to the DRM_VMW_CURSOR_BYPASS Ioctl.
+ */
+
+struct drm_vmw_cursor_bypass_arg {
+	uint32_t flags;
+	uint32_t crtc_id;
+	int32_t xpos;
+	int32_t ypos;
+	int32_t xhot;
+	int32_t yhot;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_CLAIM_STREAM - Claim a single stream.
+ */
+
+/**
+ * struct drm_vmw_context_arg
+ *
+ * @stream_id: Device unique context ID.
+ *
+ * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
+ * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
+ */
+
+struct drm_vmw_stream_arg {
+	uint32_t stream_id;
+	uint32_t pad64;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_STREAM - Unclaim a stream.
+ *
+ * Return a single stream that was claimed by this process. Also makes
+ * sure that the stream has been stopped.
+ */
+
+#endif